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Science Mock Test 7 – Full Syllabus Practice Paper Online

Home / Tests / Scholar Tests / Science Mock Test 7 – Full Syllabus Practice Paper Online
🏆 Scholarship test ✓ Free Class 10 Science

About this test

This Science (विज्ञान) mock test is made for Class 10 students who want to revise the periodic table, the environment and the wider ideas of science. It includes questions from Periodic Classification of Elements (तत्वों का आवर्ती वर्गीकरण), Sources of Energy (ऊर्जा के स्रोत), Our Environment (हमारा पर्यावरण) and Management of Natural Resources (प्राकृतिक संसाधनों का प्रबंधन), so you can practise both facts and reasoning-based questions. Solve it in one sitting with a timer, without looking at your book. Afterwards, check each answer carefully and note the topics where you lost marks. Regular practice like this builds speed and confidence for school tests and the board exam (बोर्ड परीक्षा).

39Questions
180Minutes
80Marks

What this test covers

  • Mendeleev's Periodic Table (मेंडलीव की आवर्त सारणी)
  • Modern Periodic Law and Trends (आधुनिक आवर्त नियम और प्रवृत्तियाँ)
  • Conventional and Non-conventional Sources of Energy (ऊर्जा के परंपरागत और गैर-परंपरागत स्रोत)
  • Environmental Impact of Energy Sources (ऊर्जा स्रोतों का पर्यावरणीय प्रभाव)
  • Ozone Layer Depletion (ओज़ोन परत का क्षरण)
  • Waste Management (अपशिष्ट प्रबंधन)
  • Conservation of Forests, Water and Coal (वन, जल और कोयले का संरक्षण)

Questions students ask

Who proposed the first periodic table based on atomic mass?

Dmitri Mendeleev (दिमित्री मेंडलीव).

What is the basis of the Modern Periodic Table (आधुनिक आवर्त सारणी)?

Atomic number (परमाणु क्रमांक), according to the Modern Periodic Law.

What happens to atomic size as we move from left to right in a period?

It decreases, because the nuclear charge increases and pulls the electrons closer.

What is biogas (जैव गैस)?

A fuel gas, mainly methane, made by the anaerobic breakdown of cow dung and other organic waste.

Which chemical is mainly responsible for ozone depletion (ओज़ोन क्षरण)?

Chlorofluorocarbons (क्लोरोफ्लोरोकार्बन, CFCs).

What is a biodegradable substance (जैव-निम्नीकरणीय पदार्थ)?

A substance that can be broken down by microorganisms into harmless natural materials, such as food waste and paper.

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